目的:对比分析结节性甲状腺肿与甲状腺肿瘤的超声影像学特征和彩色血流特点,提高二者诊断符合率。方法:选择本院178例通过病理证实的甲状腺结节患者,针对其具体超声影像学特征进行分析,全面研究其彩色多普勒血流特点。结果:178例甲状腺结节患者经超声诊断为甲状腺肿瘤92例,结节性甲状腺肿86例,总符合率:Acc=0.8932,灵敏度:Se=0.8476,特异度:Sp=0.9589,Kappa值=0.7851。结节性甲状腺肿结节周边有血流显示29例,血流显示率39.72%(29/73);甲状腺肿瘤结节周边有血流显示87例,血流显示率82.86%(87/105),两种疾病彩色多普勒显示率比较,差异具有统计学意义(P<0.05)。结论:高频彩色多普勒超声对甲状腺结节性病变灶检出率高,声像特征和彩色血流特点是鉴别两组疾病的关键。 OBJECTIVE: To comparatively analyze the features of ultrasound imaging and color flow of nodular goiter and thyroid tumors, and to improve the diagnostic coincidence rate between them. Methods: A total of 178 patients with thyroid nodules confirmed by pathology were selected for the analysis of the specific ultrasound imaging features, and the characteristics of color Doppler flow were comprehensively studied. Results: Of the 178 thyroid nodules, 92 cases of thyroid tumors and 86 cases of nodular goiter were diagnosed by ultrasound. The overall coincidence rate was Acc = 0.8932, the sensitivity was Se = 0.8476, the specificity was Sp = 0.9589, Kappa = 0.7851 . There were 29 cases of peripheral blood flow in nodular goiter and the rate of blood flow was 39.72% (29/73). There were 87 cases of peripheral blood flow in thyroid tumor and 82.86% (87/105) The difference of color Doppler display rate between the two diseases was statistically significant (P <0.05). CONCLUSION: High-frequency color Doppler ultrasound has a high detection rate of thyroid nodular lesions, and the features of acoustic imaging and color flow are the keys to distinguish the two groups of diseases.